Smoke and fume condenser.



PATENTED DEC. 15, 1903.

F. A. PASGOE. SMOKE AND FUMB CONDENSER.

3 SHEETS-SHEET 1.

INVENTOH WWW APPLICATION FILED AUG. 27. 1903. K0 MODEL.

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PATENTED DEC. 15, 1903.

. No. 746,989. v

' F. A. PASCOE.

SMOKE AND FUME CONDENSER.

3 SHEETS-SHEET 2.

APPLICATION FILED AUG. 27-. 1903.

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PATENTED DEC. 15, 1903.

P. A. PASGOE. SMOKE AND FUME CONDENSER.

APPLICATION FILED AUG. 27.1903. NO MODEL. 3 SHEETS-SHEET 3.

THE "cams Pz'rzns co. PnoTou'rHa. wuumm'cm. ac,

llniiris Status Patented Ilec'ember 15, 1903.

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FRANCIS A. PASOOE, OF SALT LAKE CITY, UTAH, ASSIGNOR OF ONE-HALF TO WILLIAM A. ROBERTSON, OF SALT LAKE CITY, UTAH, AND WILLIAM EIMBEOK, OF WASHINGTON, DISTRICT OF COLUMBIA.

SMOKE AND IFUlVllE CONDENSER.

SPECIFICATION forming part of Letters Patent No. 7%6,989, dated December 15, 1903.

Application filed August 27, 1903. Serial No. 170.959. (N model.)

To (LZZ whom it iota/y concern.-

Be it known that I, FRANCIS A. PAscoE, a citizen of the United States, and a resident of Salt Lake City, in the county of Salt Lake and State of Utah,have made certain new anduseful Improvements in Smoke and Fume Oondensers, of which the followingis a specification.

My invention is an improvement in fumel0 arresters, beiugin the nature of a smoke and fume condenser especially designed for use on smelters by which to avoid the injury to vegetation and otherwise by the discharge of smoke and fumes from the smelter, as well as :5 to effect a saving of gold, silver, sulfur, ar-

senic, and other elements usually carried up the smelter-fines and lost to the smelters; and the invention consists in certain novel constructions and combinations of parts, as will be hereinafter described and claimed.

In the drawings, Figure 1 is a side elevation of a portion of an apparatus embodying my invention, parts being broken away. Fig. 2 isa partial longitudinal vertical section of the apparatus. Fig. 3 is a sectional elevation showing a different form of dip-pan from that shown in Fig. 2. Fig. 4 is a cross-section on about line 4 4 of Fig. 2. Fig. 5 is a detail perspective view of one of the skeleton 3o drums with the aprons in place. Fig. 6 is a detail longitudinal section of one of the connecting-tubes of the skeleton drum. Fig. 7 is a cross-section on about line 7 7 of Fig. 5. Fig. 8 is a cross-section on about line 8 8 of Fig. 5, and Fig. 9 is a detail perspective view of a somewhat difierent form of apron from that shown in Fig. 5.

By my invention,as before suggested,I seek to arrestand condense the fumes and smoke 4.0 in such manner as to recover the precious metals and chemicals discharged from a smelter and also avoid the objections incident to the discharge of such fumes and smoke directly into the atmosphere.

As shown, my apparatus includes a casing A, which may comprise a lining B, of metal, incased in suitable brickwork or other masonry C, and such lining forms a fine through which the products discharged from the smelter pass in the direction of the arrows No. 1 in Fig. 2, such fine having the series of succeeding water tanks D, into which the aprons on the skeleton drums above their respective hoppers dip when in theirlowermost position, as shown in Fig. 2. These hoppershaped water-tanks D are used when the deposit is heavy enough to settle in the bottom of the hoppers, from which it may be drawn off by suitable taps, as shown at d. In Fig. 3 I show the water-tanks E in the form of basins designed for use when the deposit is in the shape of slimes or in solution that will flow from basin to basin and can be discharged at the end of the series and conducted to a suitable place of deposit. Both in the construction shown in Fig. 2 and in that shown in Fig. 3 I design to give aslightfall to the series of water-tanks sufiicient for any surplus water or fluid to flowin the same direction with the draft through the due. In some instances it may be sufficient to construct the flue of masonry alone, while in others the masonry may be omitted and simply the metalliclining employed. Manifestly the number of drums,which will be presently described, may be varied, it being desirable in all instances to employ as many as may be necessary to deposit all of the fumes.

The drums F are suitably journaled above their respective pans, as shown in Fig. 2, and comprise the hollow shaft F, the tubular spokesF extendingtherefrom,thecirculartubular rims F carried by the outer ends of and communicating with such ends of the spokes F and the hollow cross or connecting tubes F, extending between and connecting and communicating with the opposite end rings or rims F as shown in Figs. 2, 4, and 5. The hollow shaft F communicates with the hollow spokes F and such shaft F is suitably jour- 9o naled in the casing and connects at its outer end by a suitable coupling at G at one end with a line-pipe H, which receives water from any suitable source of supply and discharges necting-tubes F are provided with the sprayi ng-perforations f, as best shown in Figs. 5, 6, 7, and 8 of the drawings. As shown, the spokes F have the perforations f on their inner and outer sides, the rim-tube F has its perforations f on the inner and outer sides, and the connecting-tubes F have their perforations f diametricatly opposite each other, as shown. By the described construction and arrangement the water supplied to the hollow skeleton frame will be sprayed upon the interior of the casing or lining B in such mannor as to cool the same thoroughly in operation when such result is desired, and such spray also operates directly to arrest the fumes and smoke and condense the same in the deposit in the tanks D, and the aprons I, suspended from the cross-tubes F will be kept moistened at all times, so the metallic and chemical substances discharged against said aprons will be collected thereon andcan be discharged therefrom when the aprons dip into their pans D in the operation of the invention. These aprons I may be made, as shown in Figs. 4 and 5, of suitable frames '5, holding a screen of wire-cloth, say, of oneeighth of an inch or less mesh, the frame and screen being of sufficient weight to cause the aprons to hang in a perpendicular position, as shown in Figs. 2, 4, and 5. When the apparatus is employed on a flue where the fumes are cool enough, burlap or other suitable textile material may be substituted for the wirecloth. It will also be understood where desired the aprons may be made of sheet-lead, as shown in Fig. 9, and I do not desire to be limited in the broad features of my invention to the special construction of the aprons, as it will be understood in some instances the screen-apron shown in Fig. 5 will be quite desirable, while in others the apron of burlap or that of lead may be preferred.

The several shafts F are suitably connected so they may be driven at a uniform speed, which will ordinarily be that of the natural draft through the flue, so the aprons and spray are continually coming in contact with the fumes without checking the draft, and the aprons will operate to cause the fumes to be 'constantlychanging their course, so they may be subjected to the action of the spray discharged by the drums and will be deposited in the manner before described in the pans at the bottom of the casing.

The spray of water or other fluids may be varied to suit the circumstances, the water or other fluid entering the spraying device through the hollow shaft, which is providedwith a suitable packing-box or coupling at G, as before described, and the spray discharging from the rims, spokes, and connectingtubes of the skeleton drums, as set forth. The spray from the cross-tubes, upon which the aprons are suspended, is downand upon the aprons and also at an angle of about fortyfive degrees and in the opposite direction from the revolution of the drums, which latter revolve in the direction of the draft in the casing, as indicated by the arrows in Fig. 2. Ordinarily the spokes and rims will only be used to spray with when the apparatus is close to the smelting-furnace, when their function is to spray upon the side of the casing if the latter is of metal, at which time also the cross pipes or tubes F direct their spray upwardly toward the roof of the casing as well as directly down upon the aprons. By the described construction the entire casing is protected against excessive heat when the apparatus is arranged close to the smelter.

As best shown in Fig. 2, I prefer to set the drums so that the aprons assume different positions and retain their relative positions while they are being propelled, as the shafts of the several drums are provided with sprocket-wheels K, connected by the chain L,

supported by the idlers M, one of the shafts being provided at N with a pulley by which the apparatus will be geared with a suitable drive mechanism. By this relative arrangement of the aprons the smoke or fumes are caused to take a zigzig course through the casing.

The invention is simple, can be readily applied to the smelters now in use, and will be found to operate effectively for the purposes for which it is especially designed.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is- I 1. In an apparatus substantially as described the combination of a casing having the bottom tanks arranged in a series, the skeleton drums having hollow shafts journaled in the casing, tubular spokes extending from and communicating with the hollow shaft, the hollow tubular rims connected and communicating with the hollow spokes, the hollow cross or connecting tubes extending between and communicating with the opposite tubular rims, said rims, spokes and connecting-tubes having spraying-openings, the aprons suspended from the hollow connecting-tubes, means whereby the several drums are caused to move together, and means for supplying fluid to the hollowshafts of the several drums substantially as and for the purposes set forth.

2. In an apparatus substantially as described adrum comprising a skeleton frame having a hollow shaft, hollow spokes com municating therewith, hollow rims communicating with said spokes, hollow cross-tubes or connections communicating with said rims, and aprons suspended from the said frame substantially as set forth.

3. In an apparatus substantially as described the combination of a skeleton-drum frame having hollow members provided with spraying-openings, and an apron suspended from said frame in position to receive the spray discharged from said spraying members substantially as set forth.

4:. The combination in an apparatus substantially as described of a casing, a skeletondrum frame journaled therein aud having spraying members arranged to discharge spray to the walls of the casing whereby to cool the same, and an apron suspended from the skeleton-drum frame substantially as set forth.

5. In an apparatus substantially as described a drum comprising a skeleton frame having hollow cross-tubes or connections and means whereby fiuid may be directed thereto, and aprons suspended from said cross conmeeting-tubes substantially as set forth.

6. The combination in an apparatus substantially as described of the casing, the series of skeleton drums having hollow shafts journaled therein and spraying members in communication with said shafts, and means for supplying fluid to the said hollow shafts substantially as set forth.

7. In an apparatus substantially as described a fume-arrester drum having swinging aprons of wire-cloth substantially as set forth.

8. In an apparatus substantially as described a fume-arresting drum having swinging aprons of fabric substantially as set forth.

9. In an apparatus substantially as described the combination of the casing, the series of tanks succeeding each other, and a series of drums above their respective tanks and provided with the swinging aprons dip ping into and out of the tanks substantially as set forth.

10. An apparatus substantially as described having a drum provided with a swinging suspended apron or aprons substantially as set forth.

11. In an'apparatus substantially as described a drum having a swinging suspended apron and means for discharging vapor thereon substantially as set forth.

12. In an apparatus substantially as described the combination of the casing, a tank at the bottom thereof and a revolving drum above said tank and having a swinging suspended apron or aprons arranged to dip into said tank as set forth.

13. An apparatus substantially as described comprising the casing and a series of drums arranged in succession therein and provided with swinging aprons, the succeeding drums being so arranged relatively that their aprons will occupy different positions whereby to vary the course of the smoke and fumes through the casing substantially as set forth.

14. In an apparatus substantially as described the combination of the casing, the series of drums arranged in succession in the casing and provided with the swinging suspended aprons, and means for turning said drums.

15. In an apparatus substantially as described a drum comprising the shaft, the spokes, the end rings or rims, the connections between said rings or rims, and the swinging aprons suspended on said connections substantially as forth.

FRANCIS A. PASGOE.

Witnesses:

WM. A. ROBERTSON, EUGENE M. CANNON. 

